Is this a good team for Reg I? Made some tests and kinda works, but I think I can make it better

Ursaluna @ Flame Orb
Ability: Guts
Shiny: Yes
Tera Type: Ghost
EVs: 140 HP / 252 Atk / 4 Def / 92 Spe
Adamant Nature

• Protect
• Facade
• Headlong Rush
• Drain Punch

Tornadus (M) @ Covert Cloak
Ability: Prankster
Tera Type: Flying
EVs: 164 HP / 172 Def / 20 SpA / 4 SpD / 148 Spe
Bold Nature
IVs: 0 Atk

• Rain Dance
• Tailwind
• Taunt
• Bleakwind Storm

Heatran @ Life Orb
Ability: Flash Fire
Tera Type: Grass
EVs: 180 HP / 12 Def / 252 SpA / 12 SpD / 52 Spe
Modest Nature

• Tera Blast
• Protect
• Heat Wave
• Flash Cannon

Ogerpon-Wellspring (F) @ Wellspring Mask
Ability: Water Absorb
Tera Type: Water
EVs: 252 Atk / 4 SpD / 252 Spe
Jolly Nature

• Horn Leech
• Knock Off
• Spiky Shield
• Ivy Cudgel

Landorus-Therian (M) @ Sitrus Berry
Ability: Intimidate
Tera Type: Water
EVs: 252 HP / 64 Def / 100 SpD / 92 Spe
Jolly Nature

• Rock Slide
• Stomping Tantrum
• U-turn
• Taunt

Lunala @ Power Herb
Ability: Shadow Shield
Level: 50
Tera Type: Psychic
EVs: 52 HP / 12 Def / 180 SpA / 12 SpD / 252 Spe
Modest Nature
IVs: 0 Atk

• Wide Guard
• Moongeist Beam
• Trick Room
• Meteor Beam